Disclosures About Fair Value of Financial Instruments (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	$ 80,933	$ 113,252
Loans evaluated for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	62,730	87,087
Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	18,203	26,165
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	80,933	113,252
Level 3 | Loans evaluated for impairment
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	62,730	87,087
Level 3 | Real estate owned
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Total assets	$ 18,203	$ 26,165